Muddy Mole
A dick that's just been inside of a butt without a condom and hasn't been washed yet.
Guy one: "Dude, did she go ass-to-mouth?"
Guy two: "Yeah man."
Guy one: "Oh gross, I can't believe she'd just put a Muddy Mole in her mouth like that."
Guy two: "Yeah man."
Guy one: "Oh gross, I can't believe she'd just put a Muddy Mole in her mouth like that."